Hey @shahriatasfia. As a Greeter for @greetersguild, I am here to help everyone learn, earn and grow. Copying work from another source that is not yours is very frowned upon on Steemit. To avoid getting flagged (downvote) from other members and ending up on a blacklist, please source where your work comes from. Source means to copy the link that you take text or pictures from and paste the link into your post. Please keep this in mind when you write future post and edit this post with the link that @cheetah posted since that is where this came from. We want to see everyone succeed and I am here to help teach others who are new so that they can learn before a bigger Steemian comes in and flags them.

I see why you wanted to talk about this topic, it is a very nice article. Just source your work and try to add your own thought to the article. Thank you and I hope you understand!